一种新的时频分析方法

A New Approach to Time-Frequency Analysis

针对如何消除或者减弱时频分布中交叉项的影响 ,学者们提出了许多方法 ,如伪WV分布和RID分布等等。在分析了STFT和伪WV分布的基础上 ,从频域滤波的角度给出了一种新的时频分析方法 ,它能有效的消除或者减弱交叉项的影响。最后 ,通过仿真实例验证了该时频分析方法的有效性。

For removing or weakening cross-term in time-frequency distributions, many methods had be presented, such as Pseudo Wigner-Ville Distribution(PWVD) etc. On the base of relation between STFT and PWVD, This article gives a new approach to time-frequency analysis, it can removing cross-term effectively and be demonstrated by simulation examples.